a trip that has been organized for a particular purpose such as a scientific or military one or for exploration
探险
to go for a long walk or journey, particularly in the mountains, forests, etc. as an adventure
徒步旅行
a structure built over a river, road, etc. that enables people or vehicles to go from one side to the other
桥
a valley that is deep and has very steep sides, through which a river is flowing usually
峡谷
the scientific study of the physical features of the Earth and its atmosphere, divisions, products, population, etc.
地理
the main part of a continent or country that is connected to a larger landmass, excluding surrounding islands or territories
大陆
a passage dug through or under a mountain or a structure, typically for cars, trains, people, etc.
隧道
a state of being widely known or recognized, usually because of notable achievements, talents, or actions
名声
an activity in which someone jumps from a very high place with a rubber cord tied around their ankles
蹦极跳
to invite someone to compete or strongly suggest they should do something, often to test their abilities or encourage action
挑战
an event or competition in which participants showcase their skills or talents in front of an audience and a panel of judges
才艺表演